Measurement and simulation of short circuit current sharing under parallel connection: SiC MOSFETs and SiC Cascode JFETs

Cascode Configuration Eases Challenges of Applying SiC JFETs

After explaining the basic operation of a SiC JFET plus silicon MOSFET cascode circuit, the dynamics of cascode switching will be discussed and the use of a QRR tester to evaluate the reverse-recovery characteristics of a cascode circuit will be explained. A comparison of the cascode’s reverse recovery with that of a SiC MOSFET reveals that the JFET cascode actually performs better than the SiC...

Study of short-circuit robustness of SiC MOSFETs, analysis of the failure modes and comparison with BJTs

A Novel Circuit for Characteristics Measurement of SiC Transistors

Abstract – This paper proposes a novel test circuit for SiC transistors. On-state resistance under practical application conditions is an important characteristic for the device reliability and conduction efficiency of and SiC transistors. In order to measure the on-state resistance in practical applications, high voltage is needed, and high current is also necessary to ignite performance for t...

Thermal instability effects in SiC Power MOSFETs

Silicon carbide (SiC) power MOSFETs are characterised by potentially thermally unstable behaviour over a broad range of bias conditions. In the past, such behaviour has been shown for silicon (Si) MOSFETs to be related to a reduction of Safe Operating Area at higher drain–source bias voltages. For SiC MOSFETs no characterisation exists yet. This paper presents a thorough experimental investigat...

High Temperature Modeling and Characterization of 6H SiC MOSFETs

(Abstract) SiC offers the potential to provide high power, high temperature electronics. Our two-dimensional is used to model the current voltage characteristics of a 6H-SiC MOSFET as a function of temperature, from 25C to 200C. (Intro) In our previous paper[1], we developed a new detailed mobility model for Silicon Carbide (SiC) MOSFETs. The new model explicitly accounts for the contribution o...